The Time Fallacy
I’m sure this has an alternative, “official” name, so if you know that, let me know (it might be a version of the association fallacy)! For now, I’m going to call it the time fallacy.
The time fallacy is typically used as a counterargument (made by person B) against an original claim (made by person A). Person A might make a claim of the form “X is good for us,” while the respondent would fallaciously reply “X did exist at time T. Therefore, person A wants to take us back to time T” (where other bad things occurred).